Whew! Decisions! Once again, the SIZE
and the SPEED make the memory. Your motherboards memory bus will
make some of the decision for you. If your motherboard has a PC 66
memory bus, then there isn't any point in buying memory faster than
that. However, if PC 100 is cheaper (and that may be the case) you
can use PC 100 memory, though it will only work at the PC 66 bus
speed. If you buy more than one memory "stick" I recommend that you
buy the same speed.
Even though there are several types of memory,
we're going to look at the two most common today in home PC's.
SDRAM (Synchronous Dynamic RAM) is the slower but
cheaper of the two with a maximum bus speed of 133 MHz.
DDR (Double Data Rate) is the faster more expensive
option with bus speeds of 266 MHz (hence, double data rate) and now 333
MHz (thats smok'n!) These types are NOT interchangeable as SDRAM has
168 "pins" and DDR has 184. Do you have a notebook? Desktop
memory will not work for you! For one thing, notebook memory is only
How much is enough depends on your needs of course.
I wouldn't accept anything less than 128 MB though, and I would strongly
recommend at least 256 MB.
GOOD NEWS is that there are many sites
with "configurators" that will find the memory you need for you with some
basic info from you.